Histopathological Lesions Caused by a Digenean Trematode in a Pest Apple Snail, , in Its Native Geographic Distribution Area.

is one of the most dangerous invasive species. Morphological and molecular analyses have revealed that a digenean species belonging to the family Echinostomatidae parasitizes this snail at two sites in Buenos Aires Province, Argentina, South America. Molecular results confirmed that the species belongs to a genus closely related to .

A new species of Liolaemus (Reptilia: Squamata) of the Liolaemus capillitas clade (Squamata, Liolaemini, Liolaemus elongatus-kriegi group) from Sierra de Velasco, La Rioja Province, Argentina.

A new species of the Liolaemus capillitas clade is described. Liolaemus galactostictos sp. nov.

New species of (Reptilia, Squamata, Liolaemini) of the clade from northwestern Patagonia, Neuquén province, Argentina.

Two new species of the Liolaemus donosobarrosi clade are described. Liolaemus tirantii sp. nov.

Alternative methods of phylogenetic inference for the Patagonian lizard group Liolaemus elongatus-kriegi (Iguania: Liolaemini) based on mitochondrial and nuclear markers.

We present different approaches to a multi-locus phylogeny for the Liolaemus elongatus-kriegi group, including almost all species and recognized lineages. We sequenced two mitochondrial and five nuclear gene regions for 123 individuals from 35 taxa, and compared relationships resolved from concatenated and species tree methods. The L.

Molecular phylogenetic relationships of the lizard clade Liolaemus elongatus (Iguania: Liolaemini) with the description of a new species from an isolated volcanic peak in northern Patagonia.

A new species of the Andean-Patagonian Liolaemus elongatus clade is described. Liolaemus crandalli sp. nov.